Fluid-pressure regulator.



J. M. SWANSTROM FLUID PRESSURE REGULATQR.

APPLICATION mm AUG.2. 1913.

1 1 59%31 Piztewfiefi NW. 9, 1915.

O fNVE/VZ OR 11" W M/M/ uni,

Illinois, have invented c nil-Pressure some 33E. sarcasm-arise;

FLU

losses ful improvements in. heels, of which the 3 lion, i-eiiei'ence being l" owing is a descripso accompanying drawings, foi'ininga part hereof. M invcntiom rcla'es to fluid pressure segulators by which the flow fluid from asource of supply l g-o a receiving tank or other receiver is les ned or increased by she ii'icrease 01' decrease Gf'Dl'eSSlllt) in the .re

5 ceiveias toniaintain substantially con slant pressure in the receiver, and my inven- ,tion has for issobject :50 provide a simple "inexpensive and effective device for. the purpose stated which will be adapted so be set for any desired pressure in *he receiver.

llith these and other objects hereinafter explained in full my invention consists in the construction and combination of ele' ments hereinafter described and parlicu' 2.5 lai-ly pointed out in the claim.

Referring to the drawings Figure l is a central VEll3lC21l sectional View of a pressure I V j v ,L' T regulator embodying my lnwenmon. mg. 2 1s a side View of the Valve carrying insinher. Fig. 3 is a top plan View of the valve carrying member. Fig. -'l is top plan View of izhe sleeve forming a part of the valve chamber.v Fig. 5 is a pie. View of the blank from which the screen is formed. Fig. 6 is an elevation of one of lhe headed pins for operaiing the valve. Fig. 7 is a top plan view of a plate which may be used in place i of the heads of the pins shown in Fig. Fig". 8 is a side view of the plate shown in Fi '2. Fiq. 9 is a side View of one of the headless pinsused with the plate shown in Figs. 7 and 8; and, Fig. 10 a top plan View of the valve.

In tlis drawings l is the upper; or spring chamber of the deviceene 2 is the lower 01' valve carrying member of the device. The spring chamber 1 is preferably bell shaped as shown and the lower'edge of its open mouth is faced off as shown at 3. The Valve carrying member has a. disk let its upper end having its rim raised above the main part of ii-s upper surface and faced oil as shown at 5. h

6 is a diaphragm extending over the disk and having its edges clamped between. the

rim of die disk and the edge of the spring Qyeeificeiioe listless Faisal.

.egigiplicabicc filed iiugusc 2,

source of supplv.

nseam-ens "m M 1w 7. m. a

[Len sen 13' s. 1591....

cl? inbei 1, she spiking chamber and valve carrying member being secured together by bolts passing ihiougl lugs-7 on the spring carrying member and corresponding lugs, no shown on the spring chamber.

in the cen 'ral ponion of the upper face 0f the disk formed a 8 prefezably cfescent shaped as shown from the bottom of which a s all opening 9 leads to the. 'alve chamber he after described. ln this cenm1 portion are also two or more l'ioles 10 leading to the valve chamber.

hi the under side of the dish l: is a hollow extension 11 having at its upper end a; head 12. having an opening 13 therein sur-f rounded at its lower end by a valve seat l The head is parallel with the disk l and between it and ihe under face of the disk is formed a passage 15 which communicates with the opening 13 in the head 1?. Com municeing with this passage is an en-. lai'ged inlet opening 16 screwiihi'eaded all. its outer end to receive busliing ll which is interiorly sci'ewtlu'cadedlo receive the end 47?.21 pine merit 18 through she upper portion cfwhich the passage 15 extends. A screen formed from a square of WlI'Q gauze l9 l'QSiJS against this abullnent and is held in place by lhe bushing 17 which bears against the corners oi.itl1e square of gauze. To insect this screen it is only necessary so placeshe square of gauze over the end of the inlet opening 16 and w'ih any convenient blunt instruznenu push it into theiinlet opening until it rests against the abutment 8.

20 is a sleeve sci'c'wvthieaded at its upper end. to fit screwthreads formed on the intei'ior of the extension 11 end'having below the lower end of the extension a shoulder 21.

. This sleeve Willi the hollow .exleusion 11 inaleiial adapted lo efiecl; a light closure of the openingifl spring 25 hearing as its upper end a gainsa ilze inner face of the head of the hollow body and hearing at ils (not shown) coming from the The side Wall the cX- tension 11 13 so shaped as to form an abub receive a 23 of rubber or other resilientv lower end against shoulder 21, presses the valvetoward the valve seat 14.

In the space between the upper face of disk 4 and the diaphragm 6 are the heads 27 of pins 26 which extend through holes 10 into contact with the upper face of the head of the hollow body 22 of the valve. These pins are of such length that when they are in contact with the face of disk r they will hold the valve away from the valve seat 14.

Instead of the hvaded pins headless pins may be used in which case a plate 28 is sub stituted for the heads 27. this plate being preferably provided on its lower face with short pins 29 which engage the recess la and thus prevent it from shifting out of place.

coiled spring 30 in the spring chamber bears at one end against a disk 31 which rests on the diaphragm and at its other end bears against a disk iz, which in turn bears against the end of an adjusting screw The disks 31 and 32 are held against displacement b v lugs 34- whieh engage the end coils of'the spring.

In operation the spring ll) acting through disk 31 and diaphragm b on the heads 27 of" the pins or the plate in if headless'pins are used. will force them downward holding the valve away-"from its seat and so long as" the pressure in the receiver does not excee; that desired. tiuid will continue to flow from the source of supply. But if the pressure in the receiver exceedsthat desired pressure in .he valve chamber will cause fluid to pass through the opening 9 into the space between the upper face of the disk -I and the 'diaphragm and will cause the diaphragm to rise. removing the pressure from the heads of the pins or the plate 25 and permitting the valve to be forced against its spring 25. This action will take place automatically and as soon as the, pressure in the receiver falls the valve will be again opened.

It will of course be understood that whih for convenience of description I have referred to the spring chamber as the upper at by the -member and the valve carrying member a.

liaving thus described my invention what l claim 1s:

In a pressure regulator. a \alve carrying member omprising a disk having a raised rim on one face and having a tubular extension concentric with the disk on its other face having a partition at its inner end parallel with the disk and having an opening therein concentric with the disk and the tubular extension, a side inlet leading to the opening in the partition. an opening leading from the interior of the tubular extension through the face of the disk. a flexible diaphragm secured at its edges on the rim of the disk, acoil spring having its axis concentric ,with the disk and tubular extension arranged to bear gtlinst thediaphragm on the side opposite to the disk. a valve within the tubular extension adapted to fit against and close the opening in the partition at the inner end of the tubular extension against the inlet pressure, a spring arranged to press the valve toward said opening. and pins extending through the partition on opposite sides of the center of the central opening therein having heads above the face of the disk adapted to receive pressure from the diaphragm and having their other ends arranged to bear against the face of the valve.

This specification signed and witnessed this lath day of August l). 1912.

JOHN M. SWANSTRUNL in the presence of" 

